docs: update generated docs (#981)

diff --git a/docs/dyn/compute_beta.instanceGroups.html b/docs/dyn/compute_beta.instanceGroups.html
index 2672f0f..64c5b10 100644
--- a/docs/dyn/compute_beta.instanceGroups.html
+++ b/docs/dyn/compute_beta.instanceGroups.html
@@ -97,7 +97,7 @@
 <p class="firstline">Retrieves the list of instance groups that are located in the specified project and zone.</p>
 <p class="toc_element">
   <code><a href="#listInstances">listInstances(project, zone, instanceGroup, body=None, filter=None, maxResults=None, orderBy=None, pageToken=None)</a></code></p>
-<p class="firstline">Lists the instances in the specified instance group.</p>
+<p class="firstline">Lists the instances in the specified instance group. The orderBy query parameter is not supported.</p>
 <p class="toc_element">
   <code><a href="#listInstances_next">listInstances_next(previous_request, previous_response)</a></code></p>
 <p class="firstline">Retrieves the next page of results.</p>
@@ -640,7 +640,7 @@
 
 <div class="method">
     <code class="details" id="listInstances">listInstances(project, zone, instanceGroup, body=None, filter=None, maxResults=None, orderBy=None, pageToken=None)</code>
-  <pre>Lists the instances in the specified instance group.
+  <pre>Lists the instances in the specified instance group. The orderBy query parameter is not supported.
 
 Args:
   project: string, Project ID for this request. (required)